Therma

Therma operates as a mechanical contractor in San Jose, California, holding a strong 4.5-star rating across 57 verified client reviews. Established to serve the broader Silicon Valley region, the company has cultivated deep expertise in custom sheet metal fabrication, HVAC installation, and specialized industrial duct systems for commercial clients including cabinet shops and manufacturing facilities. As a full-service mechanical contractor, Therma delivers both new construction projects and retrofit solutions for existing commercial properties throughout the South Bay area.

What distinguishes Therma from standard HVAC companies is their in-house custom metal fabrication capability, producing specialty ducting components and custom taps for CNC machinery that cannot be sourced from off-the-shelf distributors. Their portfolio includes 2-1/2-inch custom taps into 4-inch suction ducts, custom electrical gutters with covers, and end plates built to precise specifications. The company leverages advanced fabrication technology alongside traditional pipefitting and steam work, positioning them uniquely for clients with non-standard mechanical requirements that typical contractors cannot address.

Client testimonials reveal named professionals who have earned repeat business. A reviewer referencing manager Paul praises the team's high-technology approach and dedication to quality workmanship. Dennis Gearon's review specifically describes Therma producing specialty ducting components for his custom CNC machine with consistent quality, noting preference for Therma's fit and finish over modified off-the-shelf parts. Another client recounts precise custom component fabrication including delivery ahead of schedule, demonstrating the company's commitment to project timelines and specifications.

Christian Bourgeois's negative review documents two instances where Therma employees parked inappropriately at a client's facility, blocking vehicles and visitor parking without proper coordination. This feedback represents the sole critical perspective among 57 reviews and highlights a area where operational oversight could improve.